TY - GEN
T1 - Fault detection method applied to a redundant strapdown inertial navigation system
AU - Lin, Yu Rong
AU - Guo, Si Yan
AU - Zhang, Guang Ying
PY - 2011
Y1 - 2011
N2 - A fault detection method applied to a redundant strapdown inertial navigation system, which usually undergoes rapid maneuvers, is developed in this paper. First, an improved four-points detection scheme that can significantly reduce the probability of false alarm of the generalized likelihood test(GLT) is present. Then, based on analyzing influences on the fault detection performance caused by the misalignment and scale fator errors and the random bias of a gyroscope, a parity vector error model is constructed and sequently the Kalman filtering scheme to compensate the parity vector error is designed. By example of a redundant measurement unit with four single-freedom-degree gyros, the fault detection method has been analyzed qualitatively and quantitatively through simulation tests. Simulation results demonstrate the favorable performance of the method.
AB - A fault detection method applied to a redundant strapdown inertial navigation system, which usually undergoes rapid maneuvers, is developed in this paper. First, an improved four-points detection scheme that can significantly reduce the probability of false alarm of the generalized likelihood test(GLT) is present. Then, based on analyzing influences on the fault detection performance caused by the misalignment and scale fator errors and the random bias of a gyroscope, a parity vector error model is constructed and sequently the Kalman filtering scheme to compensate the parity vector error is designed. By example of a redundant measurement unit with four single-freedom-degree gyros, the fault detection method has been analyzed qualitatively and quantitatively through simulation tests. Simulation results demonstrate the favorable performance of the method.
KW - Four-points detection
KW - GLT
KW - Parity vector compensation
KW - The probability of false alarm
UR - https://www.scopus.com/pages/publications/79751481033
U2 - 10.4028/www.scientific.net/AMR.179-180.1242
DO - 10.4028/www.scientific.net/AMR.179-180.1242
M3 - 会议稿件
AN - SCOPUS:79751481033
SN - 9783037850169
T3 - Advanced Materials Research
SP - 1242
EP - 1247
BT - Materials Science and Engineering
T2 - 2010 International Conference on Materials Science and Engineering Science, ICMSES 2010
Y2 - 11 December 2010 through 12 December 2010
ER -